Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 8:54 pm (0.0 ft)
Next high tide : in 10m at 2:36 pm (10.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:568.76:109.312:131.96:386:23First Quarter1Thu
2Fri6:538.57:079.112:521.41:092.06:396:21First Quarter2Fri
3Sat7:498.58:039.11:481.52:052.06:406:19Waxing Gibbous3Sat
4Sun8:428.78:579.32:411.42:591.86:416:18Waxing Gibbous4Sun
5Mon9:319.19:469.53:311.23:501.46:426:16Waxing Gibbous5Mon
6Tue10:149.410:309.74:161.04:361.06:436:14Waxing Gibbous6Tue
7Wed10:539.811:119.94:580.75:180.66:446:12Full Moon7Wed
8Thu11:3010.111:5110.15:370.55:590.26:456:11Full Moon8Thu
9Fri12:0710.46:160.36:40-0.16:476:09Full Moon9Fri
10Sat12:3110.112:4510.66:560.27:22-0.36:486:08Full Moon10Sat
11Sun1:1210.11:2510.87:370.28:05-0.46:496:06Waning Gibbous11Sun
12Mon1:5510.12:0810.98:190.28:50-0.46:506:04Waning Gibbous12Mon
13Tue2:419.92:5410.89:050.39:39-0.36:516:03Waning Gibbous13Tue
14Wed3:309.73:4410.79:540.510:32-0.26:526:01Third Quarter14Wed
15Thu4:249.64:4010.510:490.711:290.06:536:00Third Quarter15Thu
16Fri5:239.55:4110.411:490.96:545:58Third Quarter16Fri
17Sat6:269.56:4510.312:290.112:520.86:555:56Third Quarter17Sat
18Sun7:299.77:5110.31:300.11:550.66:575:55Waning Crescent18Sun
19Mon8:3110.18:5510.42:310.02:580.36:585:53Waning Crescent19Mon
20Tue9:3010.59:5510.63:30-0.23:58-0.16:595:52Waning Crescent20Tue
21Wed10:2310.910:5010.74:26-0.44:54-0.67:005:50New Moon21Wed
22Thu11:1211.211:4110.75:16-0.55:45-0.87:015:49New Moon22Thu
23Fri11:5911.36:04-0.46:34-0.97:025:47New Moon23Fri
24Sat12:3010.612:4411.26:50-0.27:21-0.87:045:46New Moon24Sat
25Sun1:1710.31:2911.07:360.18:07-0.67:055:45Waxing Crescent25Sun
26Mon2:0310.02:1310.78:210.58:53-0.27:065:43Waxing Crescent26Mon
27Tue2:499.62:5810.39:060.99:390.27:075:42Waxing Crescent27Tue
28Wed3:369.23:449.99:521.310:270.77:085:41Waxing Crescent28Wed
29Thu4:258.94:349.510:421.711:181.17:105:39First Quarter29Thu
30Fri5:188.65:289.211:352.07:115:38First Quarter30Fri
31Sat6:128.66:249.012:101.312:302.17:125:37First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447335)

Common Questions About Barnstable Harbor, MA Tides

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What time does the tide turn (slack tide) in Barnstable Harbor, MA today?

Slack tide in Barnstable Harbor, MA is approximately 5:45 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Barnstable Harbor, MA?

Barnstable Harbor, MA is currently in a spring phase. Tonight's moon is 14% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Barnstable Harbor, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Barnstable Harbor, MA?

Tide predictions for Barnstable Harbor, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Barnstable Harbor, MA?

Tide data for Barnstable Harbor, MA is sourced from NOAA Station #8447335. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447335.

What is the moon phase in Barnstable Harbor, MA tonight?

Tonight the moon over Barnstable Harbor, MA is Waxing Crescent (14% illuminated). This places Barnstable Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA